Table 7 Robustness tests.
From: The impact of common institutional ownership on green innovation of China’s energy firms
Dependent variables | Alternative measurement of dependent variables | Alternative measurement of independent variables | Negative Binomial Regression | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | |
Greenpated | Greencited | Greenpat | Greenpat | |||||||||
L.Coz1 | 0.583*** | 0.752*** | 0.296*** | |||||||||
(8.16) | (7.97) | (6.74) | ||||||||||
L.Coz2 | 0.707*** | 0.874*** | 0.301*** | |||||||||
(8.72) | (7.94) | (6.56) | ||||||||||
L.Coz3 | 0.906*** | 1.064*** | 0.369*** | |||||||||
(6.64) | (5.85) | (5.64) | ||||||||||
L.Coz1 Long | 0.473** | |||||||||||
(2.44) | ||||||||||||
L.Coz2 Long | 0.658*** | |||||||||||
(2.67) | ||||||||||||
L.Coz3 Long | 0.815** | |||||||||||
(2.24) | ||||||||||||
Controls | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Year FE | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Industry FE | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
N | 2924 | 2924 | 2924 | 2924 | 2,924 | 2924 | 2924 | 2924 | 2924 | 2924 | 2924 | 2924 |
Adj_R²/ Pseudo_R² | 0.352 | 0.355 | 0.346 | 0.228 | 0.229 | 0.218 | 0.321 | 0.321 | 0.320 | 0.156 | 0.155 | 0.154 |
